jacobson



A. 1.. JACOBSON.

TIRE VULCANIZING APPARATUS.

APPLICATHJN mzu lULY 19,1919. RENEWED DEC-20,1920.

1,380,966. Patented June 7, 1921.

2 suns-swan I. 26

WITNESSES INVENTOR ifi Jhqe jeofleolkow, as M A Tram: rs

A. L. JACOBSON.

TIRE VULCANIZING APPARATUS. APPLICATION man JULY 19.19i9. RENEWED me.20. 1920.

1,380,966. Patented June 7, 1921.

2 SHEETS-SHEET 2- IN YE N TOR $132100 Jacovfison,

" umanzrs UNITED STATES PATENT OFFICE.

ABGE LEO IAGOBSON, NEW YORK, N. Y-, ASSIGNOB TO LEO A. KEARNEY, OF IYORK, N. Y.

TIBE- -VULCANIZZITG APPARATUS.

1'0 ,all whomitflwy concern- Be }it known that 1, Axes LEO Jacossozf, 3a'citize'n oi the United States, and a rest- I ,dent ofthe'city of NewYork boron h of isgManhatten, in the county and tate 0 New H .York haveinvented a new and Improved 7 ,Tirc-Vulcanizing Apparatus, of which thef"; f-following a full, clear, and exact descripio'n'. 1

This inventionrelates generally to 'vul-,

eanizing apparatus, and more particularly to a device for vulcanizingtires.

T Heretoiore A a e {)ctthe tires to a suitable heating process ycarrying steam within the rece tacle. This has been objectionablebecause t etire directl, exposed to the steam and causes fa relativey'large percentage of the t res are *damageiand such tires can onlybesold -asseconds.'

'One'of the objects of this inventionis to provide an apparatus and amethod of vulcaniz'ing which will overcome the cb'ectioru l a'seomprismga cylindrical receptacle 1, havii'wable features of the prior practice,y providing an-apparatus which will permit the tires to be properlytreated. without any f rtion of 'the'mold or tire coming in directcontact with themoisture; 5A; iurth'er object of this invention 15 to i'I ide 0. device which will permit a. numand tires of the same ordifferent sizes be simultaneously vulcanized by a dry eat;

4'0 provide an improved construction and arrangenient of parts of thevulcamzmg ap- -*'-par'atus which .will permit, heat to be com ,iducteddirectly thron h the walls of a heatcarrying medium to t e t re and tohe effectively and uniformly distributed thereto without having to passthrough air or vac-- uum spaces. A further object of this mvent1cn 1s toprovide a construction in which the tire IS sealed, and which willefi'ectivel{ any heat [only to those-part5 of the tire w l the-same inthe curing process.

The above al-fleets are acwmphsh ed by rnviding a steam-jacketed r cepltdle in es in hehe tire nsides-re piece s tw Specification of LettersPatent.

.1 in the'process of vulcanizing ."the rubberftiead on tires, when anumberv 'A further object of this invention is toopposite side .h-hrequire Patented June '7, 1921.

" [A iaileatieh me m s, 1919, Serial no. 312,029. Renewed December 20,1920. Seriatflo. nearer.

periphery thereof will be in contact with the inner wall of thereceptacle so that the heat from the jacketedreceptacle will beconducted directly through the walls of the receptacle and mold to thetire, and by in- 60 sertmg a 'heatin means between the molds whichfurnish tie heat for uniformly and eifectively vulcanizin the sideportions of the tire. In the pre erred form the means interposed betweenthe molds comprises a 'hollowmember having a steamconnection therewith.

Other objects and advanta es will be apparent from the following fescrition and the accompanyin drawings in w iich simi lar characters '05reference designate like parts in the severalviews. I

In the drawinfis showing one of the preferred forms of t is inventionFigure 1 is; sectional elevational view showing the relative position ofthe device In the drawings, the invention is 'shown ing an inner wall 2and an outer wall 3, 35 forming an annular-chamber 4 therebetween into wich steam, preferably superheated, is introduced, through inlet passages5, 6 located in the preferred form one at the top and the other atthebottom, respectively. The walls 2, 3 of the receptacle areco'n nected atthe top edFes and the chamber 4 is closed by an annu ar web' 7. Atthe'bot-' tom of the receptacle 1, the annular chamher at communicateswith another annular chamber 8, having an upper wall 9 anda lower wall10. preferably integral with the walls 2 and 3, respectively, of thereceptacle. The inner edges of the walls 9. 10 are connected by acylindrical wall 11. Suitable outlet-ports 12 and 13 are connected tothe l of the wall 3 from the inlet passages,5,.6'. A suitable cover 14annular in form,- is pl0"i(led,l1itVlllI an annular chamber 15. A steuminlet 16 connected in the cover 14 at one side of the chamber 15, isprovided, and anoutlet 17 connected in theopposite side of the cover liand communicating with the ber 15 of tive position b A in lugs 23 fixedto the. cover 14 on opposite outer periphery 43 of the mold comes insides of the circular opening 24 in the 0611-- ter thereof. Any suitableoisting means,

such as a hook 25, carried by a pulley 26 ofablock-and-fall system,-maybe provided to raise the cover 14 from the receptacle 1. It is thus seenthat the annular chamber 4 extends around the receptacle 1, and thelower annular chamber 8 communicating therewithtogether with the annularchamthe cover, serve when supplied with a steam, preferably superheated,to etfectively heat the iylindriczllwliambeiwithmain 5 e in thereceptacle. in supply pipe 27 connects"with'ia supply pipe 28 whichextends upwardly and adjacent to the inlet passages 15 and 5 of thereceptacle and the inlet 16 0f t 30 and'3i, tively. connected in the s Acoupling 32 is valves 29 and '30, and another couplin 33 is connectedbetween the valves 30 an 31,

said couplin s 'serv'ing to facilitate the connecting of t e variouspipe-sections. The

outlets 12 and 13 for the chamber 4 of; the receptacle -1, and the.outlet 17 for the chamber 15 of the cover" 14 are connected by suitable'pipeconnectl 34 to a returnpipe 35. A coupling 36 i connected in the uper end of the pipe 34 b tween the butlet 1 of the cover andthe ,u pper'outlet;

12 of the chamber 4. The couplings 33 and .36, of course,- will have tobe disconnected. in

order to permit :he cover 14 tobe removed from. the receptacles-V One ofthe essential features in the con struction and arrangement of thevarious parts of the vulcanizing apparatus, is the; that thesteamsupplycould be cut oil". By

direct contact with the inner wall 2 of the steamjacketed rece tacle.Each section of the mold is shape to conform with the outer surface ofa, tire 45 positioned therein.

An air bag 46 is preferably provided to form a core for the fabricportion of the shoe positioned within the mold, .to hold-the fabr'ic'andrubber tread of the tire in proper relative position during the'vulcamzmg ver 14, through valves 29,

upply pipe 28 between the steam supply pipe 27. If desired, anothercouplings 53 and 53'. inner side of the heating rin .at the otherside ofthecouplmg-53,' would nlet an superheated, is carried to the chamber 49from -the steam supply pipe 27, through piping 50, valve 51, and piping52, a con-- pling 53 being connected in thepipe 52 between the inlet 47and the valve 51. The steam heatedsring 38 bein positioned between thetire molds 37-, e actively supplies 30 heat to the sides of the tiresthrough the tire molds. An important feature in the construction shownis that the heat is directly transmitted to =the tire within the mold onrectl from the heated ring and the wall of the c amber through the metalof the mold,

ass through air without first having I to he outlets 48 of chambers ofany kind.

'the heating rings'38 are connected to the return supply pipe. 35through a piping connection 53, valve 54, and piping 55;

k In order to shut ofl' the steam supplied to the receptacle-1 and theheating rings 38, a valve 56'may be provided in the mam valve 57 may beprovided for the steam outlet ipe 35, to be closed in order to prepreera 1y valves 58 and 59 are located the pi e connection extending'fromthe inlet 47 an the outlet 48, respectively, of the heating ring, thesaid valves being positioned between the said inlet and outlet and theand located be needed, in addition to the valve 58, so

providing the valves 58 and 59 directlf inthe outlet pi e connection e-said; valves may be 010 previous to theremo va'l of-the heating ring 38from the receptacle, and in this way prevent the escape o, 'the Thevalve 51 .at the .110

the sides'andthe periphery of the tire di- 85 steam already within ther' By oviding a valveon each side of t e coupling, the esca e of steamis prevented. It, 'understoo however, that the invention. not

to be limited to the valve arrangement" erein shown. For' the reasonsabove =I1oted,the valves 31 and 605cm p "06d 'betweeng-the couplings 33and B6, andatfeinletj16and the exhaust-port 17, i e s'pectivlmoftheremovable cover. r i

The heat ng rings 38 are provided with was iiiwgiki'ih ,pl'uiglit ofgect'iongl @0165, the mm with {he {Fe pregg-merubb'er' stbcf'f thedesign within ma: awe qa reass or 'fabmc m5 zh hm ,m

outer periphery of themolds will be in con- While there has been shownherein one of the preferred forms of the invention, it

' is understood that certainchanges and modifications, may be madeWithout departing from the spirit andscgpe of this invention. Havingthus describ my invention, what I claim is:

1. In a device of the character described,

the combination of a steam jacketed receptacle, a plurality of 'moldstherein, and a heating means interposed between adjacent molds.

2.' A tire vulcanizing device comprising a steam jacketedreceptacle,molds therein hav ing the outer surface thereofin contact with Ytheinner surface of the receptacle, and heatthe inner wall of the recetacle, and heating rings arranged between a acent molds.

4. A tire vulcanizing device comprising in combination, a receptaclehaving a hollow annular chamber therein, a steam inlet and outlet incommunication with said chamber,

' chamber,

a steam jacketed receptacle, a plura in combination, a receptacle havinga chambe! in the walls thereof, means for heating the said chamber, apluralit a cylindrical chamber within said receptacle, annular tiremolds adapted to be positioned within said cylindrical chamber so thatthe tact with the inner wall of said annular hollow rings interposedbetween the tire molds, and a steam inlet and outlet connection for eachof said rings.

5. In a tire vulcanizingdevice compirising tire molds within saidreceptacle and having the outer peri hery thereof in contact with theinner wal tacle, and meansfor supplying a relatively dry heat to thesides of said tire molds, said means including a hollow ring and a steamof the steam jacketed recepinlet and outlet connection'therefor.

6. A tire vulcanizing device comprising of tire molds havin tirestherein of di erent sizes array e "within said receptacle, and an inde-Jpen ent' heating means interposed between other annular heating chamberat the bottom b adg'acent tire molds.

- A tire vulcanizing device comprising 'a an annu ar eatmg chamber inthe sides t erect, and antherepfin communication with the,firstmentioned annular chamber, a plurality of sectionaltirc moldsadapted to receive dif-' ferent size tires, arranged within .the receptyOf;

.izing operation.

tacle, each of said tire molds having the same outside diameter andanindependent heating means i'nclu a steam heated ring interposedbetween adjacent tire molds. as a 8-. A tire vulcanizin'g ileviqecomprising in combination, a steam jacketed receptacle,

a plurality of tire molds ada ted to receive different size tires, thesaid tlre molds having substantially the same outside diameter andsubstantially the same inside diameter,

and a steam heated ring interposed between adjacent tire molds.

In a tire vulcanizin'g apparatus, the

combination of a steam jacketed receptacle 0 en at the top and having"an annular c amber in the bottom thereof, an annular cover thereforhaving an annular chamber therein, inlet and outlet-'pass'a es for saidchambers, a plurality of scale tire molds adapted to receive diiferentsize tires, ar-' ranged within the receptacle, and a heating meansincluding a steam heated' ring inter-- posed betweenadjacent tire molds.

10. In a tire vulcanizing apparatus, the

combination of a steam jacketed receptacle within the receptacle, aheating means includinga steam heated ring, interposed between adjacenttire molds and an air bag core for each of said tire molds, and meansconnected therewith for maintaining a relatively constant air pressurewithiii eachof the tire molds throughout the vulcanizing operation,whereby a dry heat is supplied to each of the tires during the vulcamzing operation. i f

11. In a vulcanizing apparatus, means to permit a plurality of tires ofdifierent sizes to besimultaneously treated within a comnon receptacleby a dry heat, said means 1Ili5l1d1n 'a steam jacketed receptacle, a-plmra 1 y 0 adapted to receive tires of different sizes,

sealed tire molds of the same size' an air bag core therein, annu armembers aving a. steam heated chamber therein interposed betweenadjacent tire molds, means connected with the air bag coresiormaintaming a relatively constant pressure therein throughout. thevulcanizmg o ration, and means connected with the annufai imemers formaintaining a relativel constant temperature therein thro ARGE LEO moms.

